This is the current configuration,we are about the purchase a new server and this is the setup i was thinking about:

Hardware RAID1 for the root filesystem (2x80GB 7.2k RPM)
Hardware RAID5, 10x256GB SSD Disks for mysql data only.
Hardware RAID1, 2x160GB SSD Disks for log files and binary logs.
The RAID Controller is Adaptec 52445
This server will have 96GB of RAM.
All those specs are for the Master, The slave will be the current master i have at the moment. (8x256GB SSD, 32GB RAM)
New server will run CentOS 5.5 on ext3 and it looks like it will run Percona stable.

Is there any other configurations i should change in my.cnf except the buffer pool size? any other filesystem i should look into XFS?